Petroleum still



Aug. 17 1926.

L.. J- HUSTED' PETROLEUM STILL 4 Sheets-Sheet 1 WAN C] Homan',

OriginalmFled March 4, 1920 All@ 17;

GAS EX/ L. J. HUsTED PETROLEUM STILL original Filed March 4, 1920 4 sheetefsheet 2 l s o) "7 n "5, En: l t

Q @E Ko 5 n l l t w 3 Wma:

N attorney Aug. 17, 1926.

L. J. HUSTED PETROLEUM STILL Original Filed March 4,r 1920 huw-@heet 5 v and 3, trap receiving chamber 27 at all times Whenthel residuum is sutliciently low to allow the float to rest on the p ipe, the object'of the float being to trap the pipe 24 against the shell `-l so that no air can enter the shell through the pipe, and to prevent" vapor from escaping from the shell through the pipe 24.

The overiloiv pipe c oi'inects to the trap tank 25 to conduct any surplus residuum from the tank at any time.

To the pipe 27 by means of the T fitting 27 is connected the pipe V31 which is connectedto and 'communicates with the receiv ing chamber (5, and the valves 32 and33 are so that the pump 28 may draw from the trap tank 25er the receiver 6 taneously, although it.isy preferred te draw from the trap tank only at most times.

The receiving chamber 6 is provided' With the pipe through Which rawn after it passes throughthe shells 1,2 tank .25, heating coil 21, and pipes 8.

The heating coilis positioned in the operation ofthe still submerged in the heat-1 ing fluid, the lower end protruding to the exterior .of the chamber fand -connected to the pump by which the crude petroleum is supplied to the shell 8, the upper end of the coil passing upwardly from the chamber and entering the shell 3.and-pi'eferably'provided with the spray holes 37.

The shells 1, 2 and 3, receiving chamber 6, trap tank 25, and pipes 23, 24,' 27 and 31 are as shown provided with the usual .safety valve for the receiving through the covering to retain heat.

he receiving chamber 6 is provided with the door 38 toiinspect the pipes 8, more particularly to ascertain when the oil is circulating properly on starting the Still in operation at any time, this door also serves as a vapor outlet pipe 39 is provided to conduct -the vapor from the receiving chamber 6 when the still is started in operation with crude oil as the heating fluid.

To operate the still the spray Wheels 15 are revolved at high speed by the motor 19 cable belts 18,V and the petroleum is forced by the pump 36 through the coil 35 and sprayed through the holes 37 onto' the pipes 8 in the shell The petroleum `:ills to the bottoni of the shell into the trap pipe 12 corresponding spray wheel 15. The Wheel 15 cuts` and beats the petroleum into fine spray and throws it upwardly between and over the pipes 8 when.. it settles over and `aroundthe pipes tothe bottom of the shell 2 and flows into the corresponding trap pipel the valve 33 is as yet closed. When in va time until the heating coil -ingly raised in provided in the pipes 27 and- 31 respectively or both simulthe residuum is 6 so that it is during- `responding trap pipe 'l2LL to the cori chamber. TheA to the receiving chamber 6 3 and'flows until it reaches the 25, the pump 28 then draws 'the fromthe trap tank through the pi and forces it to the heating cci? through tli'e`pipes'8, it being endorse petroleum has circulated through. the coil 35, shells 1, 2 and 3, coil 21and pipes '8 te l the receiving chamber (i to 'the desired depth, the valve 33 lis opened and valve 32 closed, and the pumpG discontinued ier 7F12 2l is i the desired temperature, it bei that the shells 1, 2 and 3 will b temperature.

After the shells are properlyheated f the pipes 8, it' eilig understood number of shells employed will be coi spoiidingly heated, the valve and thei'valve" 32 opened, and a ain started, the petroleum l; .i e1 e ly circulated through the shells and the pipes until it reaches the desired perature, the vapors-passing oli tlirougii t vapor` pipe 39. yThe petroleum 'in the still now. having reached the highesttemperature desired, ally the vapor releasable at that teni perature'will have been released and passed through the pipe 39, and only residuunl. will, remain in the'still. lThe pump 3G is ag. in 1 started and continued in operation, forcing the crude petroleum through the coil 35 r ing the temperature from the resi'iuuni in the receiving eliiiniberjG, and' i'i 'i petroleum through the holes uitoshell 3 spraying it over the pipes 8, e tion of the -vapor passing on" through pipe 11, the petroleum dripping dori; over the hot pipes and flowing.; .into ti ing spray wheel l5 which cuts and bei` i petroleum into fine spray and throws .it wardly over the hot pipes 8 in the Shell the petroleum drip pingdownwardly ov pipes and flowing to the corresponding tap v pipe 12 and Wheel 15, while the vapor im' passes off through the corresponding pipe 11. This process is repeated in the shell l and the residuuiii Hows to the trap tank 25, while the vapor passes oi turough the corresponding pipe 1l, the pump druwiiig the residuum from the trap tank and forcing it through the heating coil 21 and pipes 3 Where it is drawn lla' off through the pipe 34.

From the foregoing it that the crude Will'bo understood. 'im petroleum is circulated throughthe shells 3, 2 and 1 and constantly thrown` with great `"lorce in i'ine spray over the hot pi pcs 8, which assists in releasing 0 the vapor gases, the latter passii'ig oit hl.

Vthroiigih the pipes 11 after which the vapor gases are treated vin the usual manner.

The residuiim flowing from the shell i is preferably employed to heat the pipes 8 is v it contains a large per cent or the heut resid ,perature without generating pressure in the heating coil and pipes, whereas steam would have to he maintained at nearly one thousand pounds pressure per square incha in order to Vattain and maintain the required temperatu're. n

The present invention has provided a still wherein the heating fluid is circulated' through a continuous straight series of pipes surrounded by a practically continuous tube forming separate chambers through which the petroleum is circulated and repeatedly sprayed by centrifugal force over the hot pipes, the vapors passing oli separately from `"each chamber so that separate condenser-s can be employed if desired. All the heat given oli? from the the petroleum and resulting vapor except that which is lradiated through the shells, none is lost by passing from chamberto chamber as has been the practice. It will be noticed that a portion ot' the pipes 8 in each shell cannot receive any of the liquid thrown by the wheels 15 and these dry h ot pipes maintain the vapor at high teniperature until it passes out through the pipes 11, thus preventing the condensation of the vapor in the still.

lVhat Iclairn is 1. In a petroleum still, a series of shells having a common axis, a division wall between the adjacent ends of each-companion pipes 8 is taken up by4 pair of said shells, said shells and said division Walls secured together, the outer end of one of the end. shells of said series of shells being closed, receiving chamber spread across the end o't said shell, the outer .end of the opposite end shell of said series of shells being 4provided with a discharge chamber, a series of pipes leading from said `receiving chamber to said discharge cham; ber, means to deliver a liquid of a high temperature to said receiving chamber and force it through said series of pipes to said discha rg0-chamber, means to spray crude petroleum upwardly against said pipes, means to conduct thegaseous vapor therefrom, and means to drain the residuum froml said shells. i"

'In a `petroleum still, a series of tubular shellsarranged with a common axis, saidshells being secured together and separated by division walls, a series of pipes extending` through said shells longitudinally thereof,

means to circulate hot liquid through said series of. pipes,'means to deliver uid for distillation to one of said shells adjacent the discharge end of said series of pipes, and a rotarymeans adjacent each ot' said remaining shells adapted to spray said fluid of distillation upwardly againstandover said series of pipes so that said fluid will drip vdownwardly over said pipes and prolong the contact ytherewith in addition to being subject to tlie heating afforded by the rotary means.

LEMUEL J. `HUSTED. 

